<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加功能区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
          <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表 -->
      <el-table
        :data="userList"
        border
        stripe>
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column label="用户名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话号码" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="editDialogVisible = true; getUserInfo(scope.row.id)"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="deleteUser(scope.row.id)"></el-button>
            <el-tooltip effect="dark" content="分配权限" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting"  size="mini" @click="showAllotRightDialog(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页器区域 -->
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[1, 2, 5, 10]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
        </el-pagination>
    </el-card>

    <!-- 添加用户对话框 -->
    <el-dialog
      title="添加用户" :visible.sync="addDialogVisible"
      width="50%" @close="addDialogClosed">
      <el-form :model="addForm" :rules="addFormRules"  ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </div>
    </el-dialog>

    <!-- 编辑用户对话框 -->
    <el-dialog
      title="编辑用户" :visible.sync="editDialogVisible"
      width="50%" @close="addDialogClosed">
      <el-form :model="addForm" :rules="addFormRules"  ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </div>
    </el-dialog>

    <!-- 分配权限对话框 -->
    <el-dialog
      title="分配权限" :visible.sync="allotRightDialogVisible"
      width="50%" @close="setAllotRightDialogClosed()">
      <div>
        <p>当前的用户：{{this.currentUser.username}}</p>
        <p>当前的角色：{{this.currentUser.role_name}}</p>
        <p>分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in this.roleList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <div slot="footer" class="dialog-footer">
        <el-button @click="allotRightDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="allotRoleRight()">确 定</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data () {
    // 邮箱校验规则
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^([\w-])+@([\w-])+(\.[\w-])+/
      if (regEmail.test(value)) {
        return callback()
      } callback(new Error('邮箱格式不正确，请重新输入！'))
    }
    // 手机号码校验规则
    var checkMobile = (rule, value, callback) => {
      const regMobile = /^(13[0-9]|14[579]|15[0-3,5-9]|16[6]|17[0135678]|18[0-9]|19[89])\d{8}$/
      if (regMobile.test(value)) {
        return callback()
      } callback(new Error('手机号码格式不正确，请重新输入！'))
    }
    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userList: [],
      roleList: [],
      total: 0,
      addDialogVisible: false,
      editDialogVisible: false,
      allotRightDialogVisible: false,
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      id: '',
      selectedRoleId: '',
      // 分配权限当前用户的信息
      currentUser: {
        id: '',
        role_name: '',
        username: ''
      },
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '用户名长度为3-10位字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 11, message: '密码长度为6-11位字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      }
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('/users', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('数据获取失败！')
      this.userList = res.data.users
      this.total = res.data.total
      // console.log(res)
    },
    handleSizeChange (val) {
      this.queryInfo.pagesize = val
      this.getUserList()
    },
    handleCurrentChange (val) {
      this.queryInfo.pagenum = val
      this.getUserList()
    },
    async userStateChanged (userInfo) {
      const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
      console.log(res)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('更新用户状态失败！')
      } this.$message.success('更新用户状态成功！')
    },
    // 重置用户添加表单
    addDialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    // 添加用户与添加用户表单的预验证
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return this.$message.error('添加用户失败！')
        const { data: res } = await this.$http.post('/users', this.addForm)
        if (res.meta.status !== 201) return this.$message.error('添加用户失败！')
        this.$message.success('添加用户成功！')
        this.addDialogVisible = false
        this.getUserList()
      })
    },
    // 获取用户的信息
    async getUserInfo (id) {
      const { data: res } = await this.$http.get(`/users/${id}`)
      this.addForm.username = res.data.username
      this.addForm.email = res.data.email
      this.addForm.mobile = res.data.mobile
      this.id = res.data.id
    },
    // 编辑用户信息
    editUserInfo () {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return this.$message.error('添加用户失败！')
        const editInfo = { email: this.addForm.email, mobile: this.addForm.mobile }
        const { data: res } = await this.$http.put(`/users/${this.id}`, editInfo)
        if (res.meta.status !== 200) return this.$message.error('编辑用户信息失败！')
        this.$message.success('编辑用户信息成功！')
        this.editDialogVisible = false
        this.getUserList()
      })
    },
    // 删除用户并提示
    deleteUser (id) {
      this.$confirm('此操作将永久删除该用户，是否继续？', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(async () => {
        const { data: res } = await this.$http.delete(`/users/${id}`)
        if (res.meta.status !== 200) return this.$message.error('删除用户信息失败！')
        this.$message.success('删除用户信息成功！')
        this.getUserList()
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        })
      })
    },
    // 显示分配权限对话框并进行角色权限分配
    showAllotRightDialog (user) {
      this.currentUser.id = user.id
      this.currentUser.username = user.username
      this.currentUser.role_name = user.role_name
      this.getRoleList()
      this.allotRightDialogVisible = true
    },
    // 获得角色列表
    async getRoleList () {
      const { data: res } = await this.$http.get('/roles')
      this.roleList = res.data
      if (res.meta.status !== 200) return this.$message.error('数据获取失败！')
    },
    async allotRoleRight () {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$http.put(`/users/${this.currentUser.id}/role`, { rid: this.selectedRoleId })
      if (res.meta.status !== 200) return this.$message.error('设置角色失败！')
      this.$message.success('设置角色成功！')
      this.getUserList()
      this.allotRightDialogVisible = false
    },
    setAllotRightDialogClosed () {
      this.selectedRoleId = ''
      this.roleList = {}
    }
  }
}
</script>

<style lang="scss" scoped>

</style>
